A new study finds that corporate accountability and disclosure of political expenditures is on the upswing, with the boards of 31 percent of S&P 500 companies now explicitly overseeing such spending, compared to 23 percent in 2010. However, this increased oversight and transparency does not necessarily translate into less spending, as companies with board oversight of political expenditures spent about 30 percent more in 2010 than those without such explicit policies.